Material deterioration due to erosion and oxidation in high-temperature environments is a major cause of wear power plants, aircraft engines petrochemical industries. NiCrSiB based surface coatings using thermal spray techniques such as High-Velocity Oxy-Fuel (HVOF) offer cost-effective route improve the tribological properties for range substrate materials. The study investigates resistance HV...

A comprehensive experimental study on the high-velocity oxygen-fuel (HVOF) sprayed tungsten carbide/cobalt (WC/Co) deposits using laser cladding was conducted. response surface methodology based a central composite design used to analyze, predict and optimize WC/Co of laser-based HVOF coatings. The morphologies microstructures clads were characterized optical microscope, scanning electron micro...

1. LI X.M., YANG Y.Y., SHAO T.M., JIN Y.S., BARBEZAT G., 1997, Impact Wear Performances of Cr3C2-NiCr Coatings by Plasma and HVOF-Spraying, Wear, 202/2, 208–214. Google Scholar

Abstract: Two different coating microstructures of Ni-50Cr alloy were obtained on a stainless steel substrate by changing combustion characteristics of a high velocity oxy-fuel (HVOF) process and the size distribution of feed powder during coating process. Use of the finer feed powder and leaner fuel in oxygen/fuel ratio (i.e. using a ratio much less than stoichiometric ratio) led to formati...

Abstract The effect of impact velocity and temperature invar particles deposited by high-velocity oxygen fuel (HVOF) cold spray processes on the microstructure oxidation content coatings is not fully understood. Additionally, coating thickness coefficient thermal expansion (CTE) coated material influence working hardness are also insufficiently investigated. In present study, were at temperatur...

Effective testing of ceramic matrix composites (CMCs) and CMC/coating systems for high temperature, stress, velocity and/or severe oxidation/corrosion environments is a critical need in materials/coatings evaluation extreme hot section parts jet engine hypersonic applications. Most current technology can evaluate two or three the conditions given application; however, incorporating as many ther...